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Finding the Fourth Proportional to 6,915.71, 9,543.52 and 3,772.01

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Solution

The fourth proportional to 6,915.71, 9,543.52 and 3,772.01 is: 5,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.71 : 9,543.52 = 3,772.01 : x
  2. Step 2: Convert to fraction form
    6,915.71/9,543.52 = 3,772.01/x
  3. Step 3: Cross multiply
    6,915.71x = 9,543.52 × 3,772.01
  4. Step 4: Simplify right side
    6,915.71x = 35,998,252.88
  5. Step 5: Solve for x
    x = 35,998,252.88/6,915.71
  6. Step 6: Final answer
    x = 5,205.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.